The President of the United States is currently at war on Twitter with model Chrissy Teigen.
The feud began when President Trump took umbrage with Teigen's husband John Legend, and other celebrity advocates "taking the praise" for criminal justice legislation he helped pass.
Taking to Twitter, the 45th President wrote: "When all of the people pushing so hard for Criminal Justice Reform were unable to come even close to getting it done, they came to me as a group and asked for my help. I got it done with a group of Senators & others who would never have gone for it. Obama couldn't come close."
Trump also slammed CNN anchor and criminal justice reform advocate Van Jones and NBC anchor Lester Holt after the former's "Justice for All" segment aired on NBC.
This series aims to shed light on the stories of the wrongfully accused and new ways in which they are seeking justice.
"A man named @VanJones68, and many others, were profusely grateful (at that time!). I SIGNED IT INTO LAW, no one else did, & Republicans deserve much credit. But now that it is passed, people that had virtually nothing to do with it are taking the praise," Trump added.
"....musician @johnlegend, and his filthy mouthed wife, are talking now about how great it is - but I didn’t see them around when we needed help getting it passed. “Anchor” @LesterHoltNBC doesn’t even bring up the subject of President Trump or the Republicans when talking about...."
"Musician @johnlegend, and his filthy mouthed wife, are talking now about how great it is - but I didn't see them around when we needed help getting it passed. 'Anchor' @LesterHoltNBC doesn't even bring up the subject of President Trump or the Republicans when talking about the importance or passage of Criminal Justice Reform," he continued.
"They only talk about the minor players, or people that had nothing to do with it... And the people that so desperately sought my help when everyone else had failed, all they talk about now is Impeaching President Trump!"
In response to the rant, Legend implored First Lady Melania to take action.
"Imagine being president of a whole country and spending your Sunday night hate-watching MSNBC hoping somebody - ANYBODY - will praise you. Melania, please praise this man. He needs you," Legend tweeted.
"Your country needs you, Melania," he added.
Teigen then insulted the President in equally coarse language for neglecting to tag her in his rant (and indeed by referring to her simply as Legend's wife).
She wrote: "lol what a p*ssy a*s b*tch. tagged everyone but me. an honor, mister president [sic]."
The First Step Act will free more than 3,100 people from prison by reducing mandatory sentences for certain offenses. It was signed by President Trump in December of last year but has been supported by the celebrities he has criticized for years.
Legend, for example, founded the FREEAMERICA a campaign in 2014 in a bid to transform the criminal justice system.